- Stage IIIB/C patients must have refused, be ineligible for, or have failed at least one standard of care regional therapy (isolated limb perfusion or infusion) or one non-vaccine based systemic therapy (such as, high dose interleukin [IL]-2, dacarbazine/temozolomide, ipilimumab, or participation in a clinical trial); patients who are BRAF V600E mutation positive need to have failed, refused, or be ineligible for at least 2 lines of therapy (vemurafenib plus one other regimen)